EFFECT OF DRY-WET RATIO ON REMOVAL EFFICIENCY OF SANDY SOIL
SUBSURFACE INFILTRATION SYSTEM

Li Xiaodong Liu Ran Guo Feng Zhang Wei Chao Lei

doi:10.13205/j.hjgc.201501012

Volume 33 Issue 1

Mar. 2015

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Li Xiaodong Liu Ran Guo Feng Zhang Wei Chao Lei, . EFFECT OF DRY-WET RATIO ON REMOVAL EFFICIENCY OF SANDY SOILSUBSURFACE INFILTRATION SYSTEM[J]. ENVIRONMENTAL ENGINEERING , 2015, 33(1): 49-52. doi: 10.13205/j.hjgc.201501012

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Li Xiaodong Liu Ran Guo Feng Zhang Wei Chao Lei, . EFFECT OF DRY-WET RATIO ON REMOVAL EFFICIENCY OF SANDY SOIL SUBSURFACE INFILTRATION SYSTEM[J]. ENVIRONMENTAL ENGINEERING , 2015, 33(1): 49-52. doi: 10.13205/j.hjgc.201501012

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EFFECT OF DRY-WET RATIO ON REMOVAL EFFICIENCY OF SANDY SOIL SUBSURFACE INFILTRATION SYSTEM

doi: 10.13205/j.hjgc.201501012

Li Xiaodong Liu Ran Guo Feng Zhang Wei Chao Lei,

Publish Date: 2015-01-22

Abstract

Abstract

Through soil infiltration filter system，the effects of difference dry-wet ratio on the removal efficiency of subsurface infiltration system ( SIS) were discussed． At the hydraulic loading of 0. 08 m3 / ( m2 d) ，five kinds of operating conditions were set up，dividing the continuous operation and four dry-wet ratio conditions ( 1 ∶ 2，1 ∶ 1，2 ∶ 1 and 3 ∶ 1) ． The results showed that intermittent running was a positive method to enhance the removal efficiency of SIS． The dry-wet ratio of 1∶ 1 had the best removal efficiency that COD，ammonia nitrogen，TN and TP removal rates reached 90%，95%，70% and 90% respectively． Dry-wet ratio of 1∶ 1 in SIS was suggested when used in the north area predominantly sandy soil．
- subsurface infiltration system,
- dry-wet ratio,
- sandy soil

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